Title:How to Build a Dog (Science)
Level of Difficulty: 3
Summary:
Canines were the earliest domesticated animal, most likely when gray wolves began scavenging around human settlements. People tended to grab traits which they desired from across multiple breeds or tried to rapidly replicate mutations in the same one in order to get the dog they wanted. The spectacular variety of dog shapes and sizes are only governed by just one or a few genes. After a long period of research,scientists have found the secret recipe behind the spectacular variety of dog shapes and diseases. Certain types of disease show up much more frequently in dogs than in human. As a result, it could help unravel the complexity of human genetic disease.
Feedback/Comment:
After reading this article, we can roughly know the evolution history of dog.Nowadays, it is not difficult to see many different type of lovable pet kept by human. People tended to grab traits which they desired from across multiple breeds or tried to rapidly replicate mutations in the same one in order to get the most beautiful dog. Do human have the right to decide the evolution direction of dogs? In my opnion , no one has the right to deprive lives of creatures or decide the evolution direction. Artificial selection strongly against the natural law .It's kind of like when aliens try to do some experiment on you. No one would like to be the Guinea Pig. In another aspect, we got much precious data and the knowledge about gene heredity. Not only did they help us how to prevent recessive allele disease present , but also improve the technic of animal breeding. And we can avoid rare animal species from extinction. Even though we could get both advantage and disadvantage at the same time, we still need think about the ethic issue. For example, protocol about human cloning mutation and genetically modified organism are all controversial. Because we can’t find out the impact on them temporary, we should not be too selfish to sacrifice animals. There is no perfect thing in the world. Once we chose to do one thing,we must pay for it. Hence,how to strike a balance between them is very important for us .
Discussion Issues
1. What is your idea about doing experiment on animals? Do you think human is selfish?
We human sometimes do some experiments on animals for scientific research. Though there are some moral issues, they will be reasonable if they can get balance between morality and science.
ReplyDeleteExactly. If we over emphasized on moral issues ,maybe we won't progress
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